Lens moving apparatus

ABSTRACT

A lens moving apparatus includes a bobbin on which a first coil is disposed, a first magnet disposed around the bobbin to face the first coil, and a housing, which is disposed to surround at least a portion of the bobbin and has a first magnet mounting seat, which receives the first magnet, wherein the housing is provided with an adhesive inlet, which allows a side portion of the first magnet mounting seat to communicate with an outside surface of the housing.

CROSS REFERENCE TO RELATED APPLICATION

This application claims priority under 35 U.S.C. § 119 to KoreanApplication No. 10-2014-0140848, filed on Oct. 17, 2014 and KoreanApplication No. 10-2014-0158687, filed on Nov. 14, 2014, which arehereby incorporated by reference in their entirety.

TECHNICAL FIELD

Embodiments relate to a lens moving apparatus incorporated in a cameramodule.

BACKGROUND

Recently, information technology products such as cellular phones, smartphones, tablet PCs and notebook PCs, in which ultracompact digitalcameras are incorporated, are being actively developed.

A camera module, which is incorporated in small-sized electronicproducts such as smart phones, is manufactured by assembling respectivecomponents, which have been separately produced, to constitute thecamera module.

In the assembly of the camera module, a lens moving apparatus, whichconstitutes the camera module, may be provided with a magnet for drivinga lens, and the magnet may be coupled to a housing by means of anadhesive or the like.

In order to couple the magnet to the housing, an adhesive is firstapplied to side and upper surfaces of a magnet mounting seat. In thecoursed of such application, it is generally difficult to accuratelycontrol the quantity of the adhesive that is applied and to uniformlyapply the adhesive to the magnet mounting seat. This is because theviscosity of the adhesive may vary depending on the kind of adhesive,the application temperature and the like.

Accordingly, if the quantity of adhesive that is applied is small or theviscosity of the adhesive is not in the proper range, the adhesive doesnot uniformly spread, thus causing defective adhesion. In this case,when a drop experiment is performed in order to establish thereliability of the product, defective, products in which the magnet isseparated from the housing, may be evident.

Once the magnet is bonded to the housing, there is no solution foraccurately determining whether a sufficient amount of adhesive has beenuniformly applied. Accordingly, there is a need to additionally inject asufficient amount of adhesive to the bonding area after the magnet isfirst attached to the housing so as to increase the force of adhesionbetween the magnet and the housing.

In the operation of attaching the magnet to the housing, when anexcessive amount of adhesive is applied to the magnet mounting seat orwhen the viscosity of the adhesive decreases and the fluidity of theadhesive thus increases, due to the kind of adhesive, the applicationtemperature or the like, even when an appropriate amount of adhesive isapplied, the applied adhesive may flow down from the magnet mountingseat.

The adhesive, which has escaped from the magnet mounting seat and curedat another area of the lens moving apparatus, may obstruct movement ofother components constituting the lens moving apparatus, thus causingmalfunction or breakage of the lens moving apparatus. A protrudingportion, which has been formed differently from intended design due tothe cured adhesive, may incur severe defections in the autofocusingfunction and handshake correction.

When an adhesive flows down and is cured during the procedure ofattaching the magnet, the cured adhesive may be removed using tweezers,a knife or the like. However, there is another problem in that othercontaminants may adhere to the lens moving apparatus during the removalprocedure.

When contaminants infiltrate the lens moving apparatus constituting thecamera module in the assembly of the camera module, the infiltratedcontaminants may cause malfunction of the lens moving apparatus, qualitydegradation of captured images or the like. Furthermore, the lens movingapparatus and the camera module have to be firmly assembled.

For these reasons, a bonding operation of filling gaps betweenrespective components with an adhesive may be performed in order toprevent contaminants from infiltrating the gaps while the respectivecomponents may be firmly coupled to each other using the adhesive.

The bonding operation has to solve the above problems and has to berapidly and efficiently performed.

BRIEF SUMMARY

Embodiments intend to provide a lens moving apparatus capable ofincreasing the bonding force between a magnet and a housing and a cameramodule including the same.

Furthermore, embodiments intend to provide a lens moving apparatushaving a structure capable of firmly coupling respective components toeach other and rapidly and efficiently performing a bonding operation ofsealing gaps between components and a camera module including the same.

In one embodiment, a lens moving apparatus includes a bobbin on which afirst coil is disposed, a first magnet disposed around the bobbin toface the first coil, and a housing, which is disposed to surround atleast a portion of the bobbin and has a first magnet mounting seat,which receives the first magnet, wherein the housing is provided with anadhesive inlet, which allows a side portion of the first magnet mountingseat to communicate with an outside surface of the housing. In anotherembodiment, a lens moving apparatus includes a housing for supporting afirst magnet, a cover member surrounding the housing, a base disposed soas to be spaced apart from the housing by a predetermined distance, abobbin on which a first coil is provided so as to be moved in a firstdirection, a support member disposed on a side surface of the housing soas to support the bobbin and the housing while allowing the bobbin andthe housing to be movable in second and/or third directionsperpendicular to the first direction, and a second coil disposed underthe housing to move the support member in the second and/or thirddirections, wherein the housing includes a first magnet mounting seatfor receiving the first magnet and an adhesive inlet allowing the outersurface of the housing to communicate with a side portion of the firstmagnet mounting seat.

In a further embodiment, a lens moving apparatus includes a printedcircuit board, a cover member accommodating at least a portion of theprinted circuit board, and a base, on which the printed circuit board ismounted and which is coupled to the cover member, wherein a first recessis defined by portions of end surfaces of the printed circuit board, thecover member and the base.

BRIEF DESCRIPTION OF THE DRAWINGS

Arrangements and embodiments may be described in detail with referenceto the following drawings, in which like reference numerals refer tolike elements and wherein:

FIG. 1 is a schematic perspective view showing a lens moving apparatusaccording to an embodiment;

FIG. 2 is an exploded perspective view showing the lens moving apparatusaccording to the embodiment;

FIG. 3 is a plan view showing an upper elastic member according to theembodiment;

FIG. 4 is a plan view showing a lower elastic member according to theembodiment;

FIG. 5 is a view showing the lens moving apparatus shown in FIG. 1, fromwhich a cover member has been removed;

FIG. 6 is a perspective view of the bobbin according to one embodiment;

FIG. 7 is a front view showing a support member according to theembodiment;

FIG. 8 is a front view showing a support member according to anotherembodiment;

FIG. 9 is an exploded perspective view showing a base, a printed circuitboard and a second coil according to an embodiment;

FIG. 10 is a perspective view showing a housing according to anembodiment;

FIG. 11 is a bottom perspective view showing the housing according tothe embodiment;

FIG. 12 is a view of the housing in which the z-axis direction shown inFIG. 11 is rotated by 180°;

FIGS. 13 and 14 are enlarged views of circle A of FIG. 12;

FIGS. 15 and 16 are views illustrating a second flow restrictoraccording to one embodiment;

FIG. 17 is a view showing an adhesive inlet according to one embodiment;

FIG. 18 is a view showing an adhesive inlet according to anotherembodiment;

FIG. 19 is a view illustrating a second flow restrictor according toanother embodiment;

FIG. 20 is a schematic perspective view showing the lens movingapparatus according to another embodiment;

FIG. 21 is an enlarged view showing area A of FIG. 20;

FIG. 22 is a view showing a bonding procedure of coupling the lensmoving apparatus according to another embodiment;

FIG. 23 is a bottom view showing a base according to one embodiment;

FIG. 24 is a bottom view showing a base according to another embodiment;

FIG. 25 is a bottom view showing a base according to a furtherembodiment;

FIG. 26 a bottom view showing a base according to still anotherembodiment;

FIG. 27 is a bottom view showing a base according to yet anotherembodiment;

FIG. 28 is a view showing a second recess; and

FIG. 29 is a schematic view showing a side surface of the second recess.

DETAILED DESCRIPTION

Hereinafter, embodiments will be described with reference to theattached drawings. In the drawings, the same or similar elements aredenoted by the same reference numerals even though they are depicted indifferent drawings. In the following description, a detailed descriptionof known functions and configurations incorporated herein will beomitted when it may make the subject matter of the disclosure ratherunclear. Those skilled in the art will appreciate that some features inthe drawings are exaggerated, reduced, or simplified for ease indescription, and drawings and elements thereof are not shown always atthe proper scale.

For reference, in the respective drawings, a rectangular coordinatesystem (x, y, z) may be used. In the drawings, the x-axis and the y-axisindicate a plane perpendicular to the optical axis, and for convenience,the optical axis (z-axis) direction may be referred to as a firstdirection, the x-axis direction may be referred to as a seconddirection, and the y-axis direction may be referred to as a thirddirection.

FIG. 1 is a schematic perspective view showing a lens moving apparatusaccording to an embodiment. FIG. 2 is an exploded perspective viewshowing the lens moving apparatus according to the embodiment. FIG. 3 isa plan view showing an upper elastic member 150 according to theembodiment. FIG. 4 is a plan view showing a lower elastic member 160according to the embodiment. FIG. 5 is a view showing the lens movingapparatus shown in FIG. 1, from which a cover member 300 has beenremoved.

A handshake correction apparatus, which is applied to compact cameramodules of mobile devices such as smart phones or tablet PCs, refers toan apparatus configured to prevent the contour of an image captured whentaking a still picture from not being clearly formed due to vibrationcaused by user handshake. In addition, an autofocusing apparatus isconfigured to automatically focus the subject image on the surface of animage sensor (not shown). The handshake correction apparatus and theautofocusing apparatus may be configured in various manners. In thisembodiment, the handshake correction and/or autofocusing operations maybe performed in such a manner as to move an optical module composed of aplurality of lenses in a first direction or in a plane perpendicular toa first direction.

As shown in FIGS. 1 and 2, the lens moving apparatus according to theembodiment may include a movable unit 100. The movable unit 100 mayfulfill the functions of autofocusing and handshake correction of alens.

As shown in FIG. 2, the movable unit 100 may include a bobbin 110, afirst coil 120, a first magnet 130, a housing 140, an upper elasticmember 150 and a lower elastic member 160.

The bobbin 110 may be provided on the outer surface thereof with thefirst coil 120 disposed in the first magnet 130, and thus the bobbin 110may be installed in a space inside the housing 140 so as to bereciprocated in a first direction by the electromagnetic interactionbetween the first magnet 130 and the first coil 120. Since the bobbin110 is provided at the outer surface thereof with the first coil 120,the electromagnetic interaction may occur between the first coil 120 andthe first magnet 130.

The bobbin 110 may be elastically supported by upper and lower elasticmembers 150 and 160 such that the autofocusing function is fulfilled bythe movement of the bobbin 110 in the first direction.

The bobbin 110 may include a lens barrel (not shown) including at leastone lens installed therein. The lens barrel may be installed in thebobbin 110 in various manners.

For example, the lens barrel may be coupled to the bobbin 110 in such amanner that a female threaded portion is formed on an inner surface ofthe bobbin 110 and a male threaded portion, corresponding to the femalethreaded portion, is formed on the outer surface of the lens barrel toengage therewith. However, the disclosure is not limited thereto, andthe lens barrel may be directly installed in the bobbin 110 by waysother than the threaded engagement by formation of the threaded portionon the inner surface of the bobbin 110. Alternatively, at least one lensmay also be integrally formed with the bobbin 110 without the lensbarrel.

The lens coupled to the lens barrel may be composed of a single lens, ormay be composed of two or more lenses constituting an optical system.

An autofocusing function may be controlled by the direction of electriccurrent, and may be fulfilled by moving the bobbin 110 in the firstdirection.

For example, the bobbin 110 may move upward from its initial positionupon the application of forward current, whereas the bobbin 110 may movedownward from its initial position upon the application of reversecurrent. In addition, the moving distance of the bobbin 110 from itsinitial position in one direction may be increased or decreased bycontrolling the amount of current flowing in the one direction.

The bobbin 110 may be provided at upper and lower surfaces thereof withan upper support protrusion 113 (see FIG. 5) and a lower supportprotrusion (not shown). The upper support protrusion 113 may beconfigured to have a cylindrical shape or a polygonal column shape suchthat the inner frame 151 of the upper elastic member 150 is coupled andsecured to the bobbin 110.

According to this embodiment, the inner frame 151 may have a firstthrough hole 151 a formed at a position corresponding to the uppersupport protrusion 113.

The upper support protrusion 113 may be inserted in the first throughhole 151 a and may be secured thereto by means of thermal fusion or anadhesive material such as epoxy. The upper support protrusion 113 mayinclude a plurality of upper support protrusions. The distance betweenthe respective upper support protrusions 113 may be appropriatelydetermined within the range within which interference with peripheralcomponents can be avoided.

Specifically, the upper support protrusions 113 may be symmetricallyarranged at a constant interval around the center of the bobbin 110, ormay be arranged at irregular intervals so as to be symmetrical withrespect to a specific imaginary line extending through the center of thebobbin 110.

The lower support protrusion may be configured to have a cylindricalshape or a polygonal column shape, similarly to the upper supportprotrusion 113, such that the inner frame 161 of the lower elasticmember 160 is coupled and secured to the bobbin 110.

According to the embodiment, the inner frame 161 may have a thirdthrough hole 161 a formed at a position corresponding to the lowersupport protrusion. The lower support protrusion may be inserted intothe third through hole 161 a and may be secured thereinto by means ofthermal fusion or an adhesive material such as epoxy.

The distance between the respective lower support protrusions may beappropriately determined within the range within which interference withperipheral components can be avoided. In other words, the lower supportprotrusions may be symmetrically arranged at a constant interval aroundthe center of the bobbin 110.

As shown in FIGS. 3 and 4, the upper elastic member 150 and the lowerelastic member 160 may elastically support the upward and/or downwardmovement of the bobbin 110 in the first direction. The upper elasticmember 150 and the lower elastic member 160 may be constituted by leafsprings.

The upper elastic member 150, which is disposed over the bobbin 110, maybe configured such that the inner frame 151 is coupled to the bobbin 110and the outer frame 152 is coupled to the housing 140. The lower elasticmember 160, which is disposed under the bobbin 110, may be configuredsuch that the inner frame 161 is coupled to the bobbin 110 and the outerframe 162 is coupled to the housing 140.

The upper elastic member 150 and the lower elastic member 160 s mayinclude the inner frames 151 and 161 coupled to the bobbin 110, theouter frames 152 and 162 coupled to the housing 140, and the connectingmembers 153 and 163 connected between the inner frames 151 and 161 andthe outer frames 152 and 162, respectively.

The connecting members 153 and 163 may be bent at least once to form apredetermined pattern. By virtue of positional change and finedeformation of the connecting members 153 and 163, the upward and/ordownward movement of the bobbin 110 in the first direction may beelastically supported.

According to the embodiment, the upper elastic member 150 has aplurality of second through holes 152 a formed in the outer frame 152and a plurality of first through holes 151 a formed in the inner frame151, as shown in FIG. 3.

The second through holes 152 a may be fitted over the upper framesupport protrusions 144 (see FIG. 10) provided on the upper surface ofthe housing 140, and the first through holes 151 a or recesses may befitted over the upper support protrusions 113 (see FIG. 6) provided onthe upper surface of the bobbin 110. In other words, the outer frame 152may be fixedly coupled to the housing 140 through the second throughholes 152 a, and the inner frame 151 may be fixedly coupled to thebobbin 110 through the first through holes 151 a or recesses.

The connecting member 153 may connect the inner frame 151 to the outerframe 152 such that the inner frame 151 is elastically deformable withrespect to the outer frame 152 within a predetermined range in the firstdirection.

At least one of the inner frame 151 and the outer frame 152 of the upperelastic member 150 may be provided with at least one terminalconductively connected to at least one of the first coil 120 of thebobbin 110 and the printed circuit board 250.

As shown in FIG. 4, the lower elastic member 160 has a plurality offourth through holes 162 a or recesses formed in the outer frame 162 anda plurality of third through holes 161 a or recesses formed in the innerframe 161.

The fourth through holes 162 a or recesses may be fitted over the lowerframe support protrusions 145, and the third through holes 161 a orrecesses may be fitted over the lower support protrusions provided onthe lower surface of the bobbin 110.

In other words, the outer frame 162 may be fixedly coupled to thehousing 140 through the fourth through holes 162 a or recesses, and theinner frame 161 may be fixedly coupled to the bobbin 110 through thethird through holes 161 a or recesses.

The connecting members 163 may connect the inner frame 161 to the outerframe 162 such that the inner frame 161 is elastically deformable withrespect to the outer frame 162 in the first direction within apredetermined range.

As shown in FIG. 3, the upper elastic member 150 may include a firstupper elastic member 150 a and a second upper elastic member 150 b,which are separated from each other. Thanks to the dual partitioningstructure, current having different polarities or different electricpowers may be applied to the first upper elastic member 150 a and thesecond upper elastic member 150 b of the upper elastic member 150.

Specifically, the inner frame 151 and the outer frame 152 are coupled tothe bobbin 110 and the housing 140, respectively, and then solderportions are provided at positions corresponding to opposite ends of thefirst coil 120 disposed at the bobbin 110. Subsequently, conductiveconnections such as solder are provided at the solder portions, wherebycurrent having different polarities or different electric powers may beapplied to the first upper elastic member 150 a and the second upperelastic member 150 b.

In addition, the first upper elastic member 150 a is conductivelyconnected to one of opposite ends of the first coil 120, and the secondupper elastic member 150 b is conductively connected to the second upperelastic member 150 b, thus enabling external current and/or voltage tobe applied thereto.

The upper elastic member 150 and the lower elastic member 160 may beassembled to the bobbin 110 and the housing 140 through a bondingprocess by means of thermal fusion and/or adhesive. In some cases, theassembly operation comprises thermal fusion and then bonding byadhesive, performed in that order.

In a modification thereof, the lower elastic member 160 may beconfigured to have a dual partitioning structure, and the upper elasticmember 150 may be configured as an integral structure.

At least one of the inner frame 161 and the outer frame 162 of the lowerelastic member 160 may be conductively connected to at least one of thefirst coil 120 of the bobbin 110 and the printed circuit board 250. Theprinted circuit board 250 may include the at least one terminal member253, which may be conductively connected to the elastic members 150 and160.

The printed circuit board 250 may be coupled to the upper surface of thebase 210. As shown in FIGS. 2 and 5, the printed circuit board 250 mayhave a through hole through which a support member mounting recess 214is exposed.

The printed circuit board 250 may be provided with a surface on whichthe bent terminal member 253 is mounted. A plurality of terminals may bedisposed on the surface on which the first terminal member 253 ismounted so as to supply electric power, supplied from the outside, tothe first coil 120. The number of the terminals formed on the terminalmember 253 may be increased or decreased in accordance with thecomponents that are required to be controlled. The printed circuit board250 may further include an additional bent surface and an additionalterminal member.

The base 210 is disposed under the bobbin 110. As shown in FIGS. 2 and5, the base 210 may be configured to have an approximately rectangularshape, and may be provided on a flat surface thereof with the supportmember 220 held thereto. The base 210 may be provided with steppedportions 211 to which an adhesive is applied in order to adhesivelyattach the cover member 300 thereto. The surface of the stepped portion211 may contact one end of the cover member 300.

The base 210 may have a support recess, which is formed in the surfacethat faces the terminal member 253 of the printed circuit board 250 andhas a size corresponding to the first terminal member 251. The supportrecess may be recessed from the outer surface of the base 210 by apredetermined depth such that the portion of the terminal member 253that protrudes from the base 210 is eliminated or controlled to adesired amount.

The stepped portions 211 may guide the cover member 300, which ismounted on the base 210. The cover member 300 may be mounted on the base210 such that an end of the cover member 300 engages with the base 210in a surface-contact manner. The stepped portions 211 and the end of thecover member 300 may be adhesively attached to each other or sealed bymeans of, for example, an adhesive.

The base 210 may be provided at corners of an upper surface thereof withthe support member mounting recess 214, in which the support member 220is inserted. The support member mounting recess 214 may be provided withadhesive so as to securely hold the support member 220.

The end of the support member 220 may be inserted or disposed in thesupport member mounting recess 214, and may then be secured thereto bymeans of an adhesive or the like. The support member mounting recess 214may include one or more support member mounting recesses formed in theflat surface at which the support member 220 is installed. The supportmember mounting recess 214 may have an approximately rectangular shape.

As shown in FIGS. 2 and 5, according to the embodiment, the supportmember mounting recesses 214 may be provided in the base 210 in such amanner that two support member mounting recesses 214 are provided ineach flat surface. The number of support member mounting recesses 214may be increased or decreased in accordance with the shape of thesupport member 220, and three or more support member mounting recesses214 may be provided in each flat surface.

The cover member 300 may be configured to have an approximate box shapecapable of accommodating the movable unit 100, the printed circuit board250 and the base 210. As shown in FIG. 1 etc., the cover member 300 mayhave escaping portions or recesses formed in positions corresponding tothe stepped portions 211 of the base 210, and, as such, adhesive and thelike may be injected through the escaping portions or recesses.

At this point, the adhesive is set to have a low viscosity such that theadhesive injected through the escaping portions or recesses caninfiltrate the contact areas between the stepped portions 211 and theend of the cover member 300. The adhesive applied to the escapingportions or recesses fills the gap between the mating surfaces of thecover member 300 and the base 210 through the escaping portions ofrecesses, thus enabling the cover member 300 to be sealingly coupled tothe base 210.

FIG. 6 is a perspective view of the bobbin 110 according to oneembodiment. The bobbin 110 may include a first stopper 111 and/or asecond stopper 112.

The first stopper 111 may prevent the upper surface of the bobbin 110from directly colliding with the inner surface of the cover member 300shown in FIG. 1 even when the bobbin 110 moves beyond the specifiedrange due to external impact or the like in the course of moving in thefirst direction for the autofocusing function. Furthermore, the firststopper 111 may also serve to guide the installation position of theupper elastic member 150.

According to the embodiment, the first stopper 111 may include aplurality of stoppers which protrude upward by a first height h1, asshown in FIG. 6. Specifically, at least four first stoppers having apolygonal column shape may protrude. The first stoppers 111 may beconfigured to be symmetrical about the center of the bobbin 110, or maybe configured to be asymmetrical, as shown in the drawing.

The second stopper 112 may prevent the lower surface of the bobbin 110from directly colliding with the upper surfaces of the base 210 and thecircuit board 250 shown in FIG. 2 even when the bobbin 110 moves beyondthe specified range due to external impact or the like in the course ofmoving in the first direction for the autofocusing function.

According to the embodiment, the second stopper 112 maycircumferentially protrude from the side surface of the upper portion ofthe corner of the bobbin 110, and the housing 140 may have a bobbinmounting seat 146 (see FIG. 10) formed at a position corresponding tothe second stopper 112.

When the state in which the stopper 112 and the lower surface 146 a ofthe bobbin mounting seat 146 (see FIG. 10) are in contact with eachother is set be the initial position, the autofocusing function may berealized by unidirectional control in which the bobbin 110 is raisedwhen current is supplied to the first coil 120 and is lowered when thesupply of the current is halted.

If the state in which the stopper 112 is spaced apart from the lowersurface 146 a of the bobbin mounting seat 146 is set to be the initialposition, the autofocusing function may also be realized bybidirectional control in which the bobbin 110 is moved upward ordownward in the first direction depending on the direction of current.For example, the bobbin 110 may be moved upward upon the application offorward current and may be moved downward upon the application ofreverse current.

The bobbin mounting seat 146 of the housing 140, which corresponds tothe second stopper 112, is recessed. As shown in FIG. 10, the width w2of the bobbin mounting seat 146 is configured to have a predeterminedtolerance with respect to the first width w1 of the second stopper 112so as to prevent the second stopper 112 from rotating in the bobbinmounting seat 146. Accordingly, the second stopper 112 may preventrotation of the bobbin 110 even if the bobbin 110 is subjected to forcethat is applied in the direction of rotating about the z axis, ratherthan in the first direction.

The bobbin 110 may include two winding protrusions 115 formed on theouter surface of an upper portion thereof. The two ends, that is, thestarting line and ending line of the first coil 120, may be wound aroundrespective winding protrusions 115. The two ends of the first coil 120may be conductively connected to the upper surface of the upper elasticmember 150 at a position on the bobbin 110 close to the windingprotrusions 115, by means of a conductive connecting member such assolder.

The winding protrusions 115 may include a pair of winding protrusionswhich are disposed at positions symmetrical about the center of thebobbin 110, or the pair of winding protrusions 115 may be disposed closeto each other.

The winding protrusions 115 may be respectively provided at the endsthereof with retaining protrusions 115 a so as to prevent the first coil120 wound therearound from being separated therefrom or to guide theposition of the first coil 120. The winding protrusions 115 may have awidth that increases radially outward from the outer circumferentialsurface of the bobbin 110, and may be provided at the ends thereof withthe stepped retaining protrusions 115 a.

As shown in FIG. 6, the bobbin 110 may be provided with at least onegroove 116 close to the winding protrusions 115. The groove 116 mayinclude a first groove 116 a and/or a second groove 116 b. The firstgroove 116 a and/or the second groove 116 b may have a depth and widthwhich are greater than the diameter of the first coil 120 such that thestarting line or the ending line of the first coil 120 passes throughthe groove.

Accordingly, the starting line and the ending line of the first coil 120may be easily received in the first and/or second grooves 116 a and 116b. Furthermore, the starting line and the ending line of the first coil120 may extend through the first and/or second grooves 116 a and 116 bwithout interference with the upper elastic member, which is disposedthereon.

FIG. 7 is a front view showing the support member 220 according to theembodiment. FIG. 8 is a front view showing a support member 220according to another embodiment. FIG. 5 illustrates the support member220 according to one embodiment, which is disposed at the normalposition

The support member 220 is disposed at one side surface of the housing140. The support member 220 is coupled at an upper portion thereof tothe housing 110 and is coupled at a lower portion thereof to the base210. The support member 220 may support the bobbin 110 and the housing140 such that the bobbin 110 and the housing 140 can be displaced in thesecond and third directions, which are perpendicular to the firstdirection. The support member 220 may be conductively connected to thefirst coil 120.

The support members 220 may be separately disposed on the secondsurfaces 142 of the housing 140 so as to support the housing 140 in thestate of being spaced apart from the base 210 by a predetermineddistance. One end of the support member 220 may be inserted or disposedin the support member mounting recess 214, and may then be coupledthereto using an adhesive material such as epoxy. The other end of thesupport member 220 may be secured to an upper end of the side wall ofthe housing 140.

Since the support member 220 is disposed on the second surfaces 142 ofthe housing 140, a total of four support members may be symmetricallydisposed on respective side surfaces 142 one on each. However, thedisclosure is not limited thereto, and a total of eight support members220 may be provided, two on each flat surface. The support member 220may be conductively connected to the upper elastic member 150 or to theflat surface of the upper elastic member 150.

Specifically, the support member 220 may include a first couplingportion 221, a second coupling portion 224, a first elastic deformationportion 222, a second elastic deformation portion 223 and a connectingportion 225.

The first coupling portion 221 is the portion of the support member 220that is coupled to the upper end of the second surface 142 of thehousing 140. The first coupling portion 221 may include through holes atlocations corresponding to the protrusions protruding from the secondsurface 142 of the housing 140 such that the coupling portion 221 iscoupled to the upper end of the housing 140 by fitting the protrusionsinto the through holes.

Since the support member 220 is constructed separately from the upperelastic member 150, the support member 220 and the upper elastic member150 may be conductively connected to each other by means of conductiveadhesive, solder, welding or the like. Accordingly, the upper elasticmember 150 may apply current to the first coil 120 through the supportmember 220, which is conductively connected thereto.

The second coupling portion 224 may be the portion that is coupled tothe base 210, and may be provided at the end of the support member 220.Although the second coupling portion 224 may be configured as a platehaving a greater width than that of the first and second elasticdeformation portions 222 and 223, the second coupling portion 224 mayhave a width equal to or smaller than the width of the first and secondelastic deformation portions 222 and 223, without being limited thereto.

According to the embodiment, the second coupling portion 224 may bedivided into two elements, and may be inserted or disposed in thesupport member mounting recess 214, as shown in FIGS. 8 and 9. Thesecond coupling portion 224 may be securely coupled to the supportmember mounting recess 214 of the base 210 by means of an adhesivematerial such as epoxy.

However, the disclosure is not limited thereto, and the support membermounting recess 214 may be configured to correspond to the secondcoupling portion 224 and may be fitted in the second coupling portion224. The second coupling portion 224 may include a single secondcoupling portion or two or more second coupling portions. The supportmember mounting recess 214 may be formed in the base 210 in accordancewith the number of second coupling portion 224.

The elastic deformation portions 222 and 223 may be bent at least onceto provide a determined pattern. According to the embodiment, theelastic deformation portions may include first and/or second elasticdeformation portions 222, 223. The first elastic deformation portion 222extends from the first coupling portion 221 and may be connected to theconnecting portion 225. The second elastic deformation portions 223 mayextend from the second coupling portion 224, and may be connected to theconnecting portion 225.

The elastic deformation portions 222 and 223 may be positioned with theconnecting portion 225 disposed therebetween, and may be configured tohave a symmetrical shape. As shown in FIGS. 7 and 8, when the firstelastic deformation portion 222 is configured as two or more bentportions in a zigzag manner, the second elastic deformation portion 223may also be correspondingly configured. However, the disclosure is notlimited thereto, and the first elastic deformation portion 222 may beprovided alone, or the second elastic deformation portion 223 may beconfigured so as to have some other structure.

The above configuration is merely an example, and the embodiment may beconfigured to have various patterns, such as a zigzag pattern. In thiscase, only one elastic deformation portion may be provided, withoutbeing divided into the first and second elastic deformation portions 222and 223, and the elastic deformation portion may be configured to have asuspension wire shape, rather than the above pattern.

According to the embodiment, straight portions of the first and secondelastic deformation portions 222 and 223 may be approximately parallelto a plane that is perpendicular to the first direction.

When the housing 140 moves in the second and/or third directions, whichare perpendicular to the first direction, the elastic deformationportions 222 and 223 may be elastically and finely deformed in themoving direction of the housing 140 or in the longitudinal direction ofthe support member 220.

As a result, since the housing 140 may move in the second and thirddirections with almost no displacement in the first direction, theaccuracy of handshake correction may be improved. This utilizes theproperty of the first and second elastic deformation portions 222 and223, which are capable of extending in a longitudinal direction. Theterm “longitudinal direction” may refer to the connecting directionbetween first and second coupling portions 221 and 224.

The connecting portion 225 may include a pair of connecting portions,which are disposed to be symmetrical to each other and connect the firstand second elastic deformation portions 222 and 223. Although theconnecting portion 225 may be disposed between the first and secondelastic deformation portions 222 and 223, as described above, thedisclosure is not limited thereto. The connecting portion 225 may alsobe connected to one elastic deformation portion.

Although one support member 220 is provided with a pair of first andsecond elastic deformation portions 222 and 223 in the embodiment, thefirst and second coupling portions 221 and 224 may be integrallyconstructed, and the pair of first and second elastic deformationportions 222 and 223 may be coupled to the housing 140 and the base 210at the same time.

FIG. 9 is an exploded perspective view showing the base 210, the printedcircuit board 250 and a second coil 230 according to an embodiment. Thelens moving apparatus may further include the second coil 230 and adetection sensor 240.

The second coil 230 may perform handshake correction by moving thehousing 140 in the second and/or third directions by electromagneticinteraction with the first magnet 130. Accordingly, there is a need tomount the first magnet 130 at a position corresponding to the secondcoil 230.

The second coil 230 may be disposed so as to face the first magnet 130secured to the housing 140. By way of example, the second coil 230 maybe disposed outside the first magnet 130, or may be disposed under thefirst magnet 130, with a predetermined distance therebetween.

According to the embodiment, although a total of four second coils 230may be respectively disposed on the four corners of the printed circuitboard 250, the disclosure is not limited thereto. Only one second coilfor movement in the second direction and one second coil for movement inthe third direction may be disposed, or four or more second coils may bedisposed.

In this embodiment, although a circuit pattern having the shape of thesecond coil 230 may be formed on the printed circuit board 250 and anadditional second coil 230 may be disposed over the printed circuitboard 250, the disclosure is not limited thereto. Alternatively, only anadditional second coil 230 may be disposed over the printed circuitboard 250, without forming a circuit pattern having the shape of thesecond coil 230 on the printed circuit board 250.

Furthermore, the second coil 230, which has been prepared by winding awire into a doughnut shape or which has the shape of a finely patternedcoil, may be conductively connected to the printed circuit board 250.

A circuit member 231 including the second coil 230 may be disposed onthe upper surface of the printed circuit board 250 that is positionedover the base 210. However, the disclosure is not limited thereto, andthe second coil 230 may be disposed on the base 210 in a state of beingin close contact therewith, or may be spaced apart from the base 210 bya predetermined distance. In other examples, a substrate on which thesecond coil is formed may be layered on the printed circuit board 250and connected thereto.

The detection sensor 240 is positioned at the center of the second coil230 so as to detect the movement of the housing 140. The detectionsensor may fundamentally serve to detect movement of the housing 140 inthe first direction, and in some case may serve to detect movement ofthe housing 140 in the second and/or third directions.

The detection sensor 240 may be constituted by a Hall sensor, but may byconstituted by any sensor as long as the sensor is able to detectvariation of magnetic force. As shown in FIG. 9, the detection sensor240 may include two detection sensors, which are mounted on the cornersof the base 210 positioned under the printed circuit board 250. Themounted detection sensors 240 may be received in sensor mountingrecesses 215 formed in the base 210. The lower surface of the printedcircuit board 250 may be the surface opposite the surface on which thesecond coil 230 is disposed.

The detection sensor 240 may be disposed under the second coil 230 withthe printed circuit board 250 disposed therebetween such that thedetection sensor 240 is spaced apart from the second coil 230 by apredetermined distance. In other words, the detection sensor 240 is notdirectly connected to the second coil 230, and the printed circuit board250 may be provided on the upper surface thereof with the second coil230 and on the lower surface thereof with the detection sensor 240.

FIG. 10 is a perspective view showing the housing 140 according to anembodiment. FIG. 11 is a bottom perspective view showing the housing 140according to the embodiment.

The housing 140 may be configured to have a hollow column shapesupporting the first magnet 130. According to the embodiment, thehousing 140 may have an approximately octagonal shape, as shown in FIGS.10 and 11. The housing 140 may include a first side surface 141 and asecond side surface 142. The first magnet 130 may be mounted on thefirst side surface 141, and the support member 220 may be disposed onthe second side surface 142.

The first side surface 141 may be positioned at the corner of thehousing 140. According to the embodiment, the first side surface 141 maybe configured to have a surface area equal to or larger than that of thefirst magnet 130. The first magnet 130 may be secured in a first magnetmounting seat 141 a formed in the inner surface of the first sidesurface 141.

The first magnet mounting seat 141 a may be constituted by a recesshaving a size corresponding to the size of the first magnet 130, and mayface at least three surfaces of the first magnet 130, that is, bothlateral surfaces and the upper surface of the first magnet 130.

Although the first magnet 130 may be secured to the first magnetmounting seat 141 a by means of an adhesive, the disclosure is notlimited thereto, and double-sided adhesive tape or the like may bealternatively be used. Furthermore, the first magnet mounting seat 141 amay not be constituted by the recess shown in FIG. 4, but may beconfigured to have a mounting hole in which the first magnet 130 ispartially fitted or exposed.

The housing 140 may be provided on the upper surface thereof with aplurality of third stoppers 143. The third stoppers 143 may restrict theupward movement of the housing 140.

The third stoppers 143 may also serve to guide the installation positionof the upper elastic member 150. To this end, the upper elastic member150 may be provided at positions corresponding to the third stopper 143with guide holes 155 having a shape corresponding to the third stopper143, as shown in FIG. 3.

Although the first side surface 141 may be disposed parallel to the sidesurface of the cover member 300, the disclosure is not limited thereto,and the first side surface 141 may be configured to have a largersurface area than the second side surface 142.

As shown in FIGS. 10 and 11, the second side surface 142 may be recessedto define a reception recess 142 a having a predetermined depth.According to the embodiment, the lower surface of the reception recess142 may be open, and both the upper and lower surfaces of the receptionrecess 142 may be open.

Thanks to the provision of the reception recess 142 a, spatialinterference between the connecting members 153 and 163 and the bobbin110 is eliminated when the bobbin 110 moves with respect to the housing140 in the first direction, thus allowing the connecting members 153 and163 to be easily elastically deformed.

The lower open end of the reception recess 142 a may prevent the secondcoupling portion 224 of the support member 220 from interfering with thehousing 140. As shown in FIG. 11, the reception recess 142 a may beprovided at the upper end thereof with a stepped portion 142 b so as topartially support the upper portion of the support member 220.

Although the reception recess 142 a may be positioned at the lateralside of the housing 140 as in the embodiment, the reception recess 142 amay alternatively be positioned at the corner of the housing 140depending on the shape and/or position of the connecting members 153 and163 of the elastic members 150 and 160 and the support member 220.

The housing 140 may be provided at the upper surface thereof with aplurality of upper frame support protrusions 144 to which the outerframe 152 of the upper elastic member 150 is coupled. The number ofupper frame support protrusions 144 may be greater than the number ofupper support protrusions 113. This is because the length of the outerframe 152 is longer than the length of the inner frame 151.

The outer frame 152 may have second through holes 152 a which are formedat positions corresponding to the upper frame support protrusions 144,and may have a shape corresponding to the upper support protrusions 144.The upper frame support protrusions 144 may be fixed in the secondthrough holes 152 a by means of an adhesive or thermal fusion.

As shown in FIG. 11, the housing 140 may be provided at a lower surfacethereof with a plurality of lower frame support protrusions 145 to whichthe outer frame 162 of the lower elastic member 160 is coupled. Thelower frame support protrusions 145 may be more numerous than the lowersupport protrusions because the outer frame 162 of the lower elasticmember 160 is longer than the inner frame 161.

The outer frame 162 may have fourth through holes 162 a, which areformed at positions corresponding to the lower frame support protrusions145 and have a shape corresponding to that of the lower frame supportprotrusions 145. The lower frame support protrusions 145 may be fixed inthe fourth through holes 162 a by means of an adhesive or thermalfusion.

The housing 140 may further be provided at a lower surface thereof withfourth stoppers 147. The fourth stoppers 147 may serve to restrict thedownward moving distance of the housing 140. Therefore, the fourthstoppers 147 may prevent the bottom surface of the housing 140 fromcolliding with a base 210 and/or a printed circuit board 250.

The fourth stoppers 147 may be maintained in the state of being spaced apredetermined distance apart from the base 210 and/or the printedcircuit board 250 during an initial stage or during normal operation. Byvirtue of this construction, the housing 140 may be spaced apart notonly from the base 210 disposed thereunder but also from the covermember 300 disposed thereover, and, as such, the housing 140 may bemaintained at a constant level in the first direction withoutinterference from obstacles above and below. Accordingly, the housing140 may perform a shifting action in second and third directions,perpendicular to the first direction.

FIG. 12 is a view of the housing in which the z-axis direction shown inFIG. 11 is rotated by 180°. When the first magnet 130 is coupled to thefirst magnet mounting seat 141 a using an adhesive g, the housing 140may be installed on a working table such that the z-axis direction isdirected downward, unlike the disposition shown in FIGS. 1 and 2, andthe coupling operation may be performed. Since the object of theembodiment is to solve the problems occurring in the case where aninsufficient or excessive amount of adhesive g is applied to the firstmagnet mounting seat 141 a, in order to clearly explain the relatedstructures, figures in which the first direction is directed downwardare illustrated in FIG. 12 and subsequent drawings.

As shown in FIG. 12, the housing 140 may have adhesive inlets which areformed between the outer surface of the housing 140 and the side surfaceP1 of the first magnet mounting seat 141 a. In other words, the housing140 may have adhesive inlets that are depressed from the lower surfaceof the housing 140 so as to allow the first magnet mounting seat 141 ato communicate with the outside of the housing 140.

As shown in FIG. 12, the adhesive inlet 141 b may be configured to havea recess which is formed by partially depressing the lower surface ofthe housing 140. However, this is merely one embodiment, and theadhesive inlet 141 b may also be configured to have a hole shape whichconnects the outer surface of the housing 140 and the side surface P1 ofthe first magnet mounting seat 141 a. In this case, the hole shape maybe open at a portion of the inner surface thereof.

The adhesive inlet 141 b is preferably is formed at a lower portion ofthe side surface P1 of the first magnet mounting seat 141 a.Specifically, this is because, since the housing 140 is in an invertedstate when the first magnet 130 is mounted on the first magnet mountingseat 141 a, unlike the disposition shown in FIGS. 1 and 2, the adhesiveg, which is introduced through the adhesive inlet 141 b, flows towardthe upper end from the lower end of the first magnet mounting seat 141 adue to gravity.

Specifically, the first magnet 130 may be configured to have, forexample, a trapezoidal shape when viewed in a plan view, and the firstmagnet mounting seat 141 a, which is provided at the corner of thehousing 140, may also be configured to have a trapezoidal shape whenviewed in a plan view. Meanwhile, the side surface P1 of the firstmagnet mounting seat 141 a may include a first side surface P1-1, whichcorresponds to the upper side of the trapezoid, and second side surfacesP1-2 connected to both side edges of the first side surface P1-1.

The adhesive inlet 141 b may be formed between the first side surfaceP1-1 and/or the second side surface P1-2. The specific example of themagnetic inlet 141 b will be described later.

In the procedure of mounting the first magnet 130 on the housing 140,the adhesive g is first applied to the side surface P1 and the uppersurface P2 of the first magnet mounting seat 141 a. At this time, it isdifficult to uniformly apply an accurate quantity of adhesive g to thefirst magnet mounting seat 141 a. This is because the viscosity of theadhesive g may vary depending on the kind of adhesive g, the temperatureduring the mounting operation, or the like.

Accordingly, when the quantity of adhesive g that is applied is small,the adhesive g may have an unsuitable viscosity and thus not uniformlyspread, thus causing defective attachment of the first magnet 130. Whena drop experiment for determining the reliability of products isperformed under such a condition, defective products in which the firstmagnet 130 is separated from the housing 140 may be evident.

There is no way to determine whether a sufficient amount of adhesive Gis uniformly applied once the first magnet 130 is attached to thehousing 140. Accordingly, after the first magnet 130 is first attachedto the housing 140, there is the need to inject additional adhesive g tothe attaching area of the housing 140 in order to supply a sufficientamount of adhesive g to the attaching area, thus increasing the adhesiveforce between the first magnet 130 and the housing 140.

Accordingly, in order to supply the additional adhesive g to theattaching area after attaching the first magnet 130 to the housing 140,the adhesive inlet 141 b may be formed.

At this point, when the adhesive g is injected through the adhesiveinlet 141 b using an injector n, the adhesive g discharged from theneedle point of the injector may penetrate into the gap between thefirst magnet 130 and the first magnet mounting seat 141 a, at which theadhesive g was not applied in the first application, thus increasing thebonding force between the first magnet 130 and the housing 140.

In the embodiment, the adhesive inlet 141 b is formed so as to connectthe outer surface of the housing 140 and the side surface P1 of thefirst magnet mounting seat 141 a, and the adhesive g is additionallyapplied to the bonding area through the magnet inlet 141 b so as toincrease the bonding force between the first magnet 130 and the housing140.

The upper surface P2 of the first magnet mounting seat 141 a may beprovided with at least one first flow restrictor 141 a-1 for restrictingthe flow of the adhesive g. The first flow restrictor 141 a-1 may beconfigured to have a groove parallel to the lower side of the trapezoidof the first magnet mounting seat 141 a.

When an excessive amount of adhesive g is applied to the first magnetmounting seat 141 a or when the viscosity of the adhesive g is decreasedand its fluidity is thus increased due to the kind of the adhesive g,the temperature during the bonding procedure, or the like, even if asuitable amount of adhesive g is applied, the applied adhesive g mayescape from the first magnet mounting seat 141 a and flow down.

Since the adhesive g, which has escaped from the first magnet mountingseat 141 a and has cured in another area of the lens moving apparatus,obstructs the movement of other components, it may cause operationalmalfunction or breakage of the lens moving apparatus. The portions thatprotrude differently from the original design due to the cured adhesiveg may cause severe defections in the autofocuing or handshake correctionof the lens moving apparatus.

In order to prevent the adhesive g from flowing down, the upper surfaceP2 of the first magnet mounting seat 141 a may be provided with thefirst flow restrictor 141 a-1. A second flow restrictor 146 a-1 mayfurther be provided.

FIGS. 13 and 14 are enlarged views of circle A of FIG. 12. Although FIG.13 illustrates the second flow restrictor 146 a-1, the first flowrestrictor 141 a-1 is described with reference to FIGS. 13 and 14, andthe second flow restrictor 146 a-1 is described later with reference toFIGS. 15 and 16. In the embodiment, the first flow restrictor 141 a-1and the second flow restrictor 146 a-1 may be selectively provided. Inother words, one or both of the first flow restrictor 141 a-1 and thesecond flow restrictor 146 a-1 may be provided.

As shown in FIGS. 13 and 14, the first flow restrictor 141 a-1 may beprovided on the upper surface P2 of the first magnet mounting seat 141 aat an inner position close to the open plane of the first magnetmounting seat 141 a so as to prevent the adhesive g applied to the uppersurface P2 or the side surface P1 of the first magnet mounting seat 141a, from flowing out of the first magnet mounting seat 141 a.

Specifically, the first flow restrictor 141 a-1 may be provided as agroove positioned parallel to the lower side of the trapezoid of thefirst magnet mounting seat 141 a.

In the cross-sectional view shown in FIG. 13, although the first flowrestrictor 141 a-1 is configured to have a semicircular shape or a “U”shape, it may be configured to have various shapes without limitation aslong as it can receive the flowable adhesive g therein.

As shown in FIG. 13, by way of example, although the first flowrestrictor 141 a-1 is constructed to have a pair of parallel grooves,the disclosure is not limited thereto. In other words, the number offirst flow restrictors 141 a-1 may be one or three or more.

The number of first flow restrictor 141 a-1 may be appropriatelydetermined in accordance with the area of the upper surface P2 of thefirst magnet seat 141 a, the amount of adhesive g that is applied, orthe like. Specifically, as the surface area of the upper surface P2 ofthe first magnet mounting seat 141 a, the amount of adhesive g, or thelike is increased, the number of first flow restrictors 141 a-1 may beincreased.

As shown in the cross-sectional view of FIG. 13(b), the upper surface P2of the first magnet mounting seat 141 a may be provided with a pluralityof stepped portions s in order to restrict the flow of the adhesive g.Here, since the plurality of stepped portions s increases the length ofthe path through which the adhesive g flows on the upper surface P2, theplurality of stepped portions s may serve to prevent the adhesive g fromflowing out of the first magnetic mounting seat 141 a and to maintainthe adhesive g on the first magnet mounting seat 141 a.

Although two stepped portions s are, by way of example, illustrated inFIG. 13, the disclosure is not limited thereto. Specifically, the numberof stepped portions s may be one or three or more. The stepped portion smay be formed on the upper surface P2, together with or without thefirst flow restrictor 141 a-1. In this case, in order to furtherincrease the length of the flowing path of the adhesive g, the edge ofthe stepped portion s may be chamfered so as to form an inclined surfacesimilar to the second flow restrictor 146 a-1

As shown in a cross-sectional view in FIG. 14(a), the adhesive g, whichflows on the side surface P1 or the upper surface P2 of the first magnetmounting seat 141 a, flows toward the open plane of the first magnetmounting seat 141 a. The flowing adhesive g is first introduced in thefirst flow restrictor 141 a-1, which is positioned farther away from theopen plane of the first magnet mounting seat 141 a, whereby the adhesive9 cannot advance any further and cannot overflow out of the first magnetmounting seat 141 a.

As shown in a cross-sectional view in FIG. 14(b), when too much adhesiveg is applied or the viscosity of the adhesive g is excessively low, theadhesive g may further advance toward the open plane of the first magnetmounting seat 141 a, beyond the first flow restrictor 141 a-1.

At this time, the adhesive g is introduced into the first flowrestrictor 141 a-1, positioned closer to the open plane of the firstmagnet mounting seat 141 a, whereby the adhesive g cannot advance anyfurther and cannot overflow out of the first magnet mounting seat 141 a.

As described above, when the number of first flow restrictors 141 a-1 isappropriately selected in consideration of the surface area of the uppersurface P2 of the first magnet mounting seat 141 a, the typical amountof the adhesive g, or the like, it is possible to efficiently preventthe adhesive g from overflowing out of the first magnet mounting seat141 a.

According to the embodiment, thanks to the provision of the first flowrestrictor 141 a-1 formed in the upper surface P2 of the first magnetmounting seat 141 a, it is possible to prevent the adhesive g fromoverflowing out of the first magnet mounting seat 141 a.

Accordingly, since it is possible to prevent the adhesive g fromoverflowing out of the first magnet mounting seat 141 a and being cured,malfunctions in autofocusing, handshake correction or the like of thelens moving apparatus due to protruding portions attributable to thecured adhesive g can be prevented.

FIGS. 15 and 16 are views illustrating the second flow restrictor 146a-1 according to one embodiment. The housing 140 may be provided overthe first magnet mounting seat 141 a thereof with a bobbin mounting seat146 in which the bobbin 110 is partially received, and the area of thehousing 140 where the inner surface of the housing and the bobbinmounting seat 146 meet in the first direction may be provided with thesecond flow restrictor 146 a-1 for restricting the flow of the adhesiveg.

Specifically, the second flow restrictor 146 a-1 may be formed at thearea where the lower surface 146 a of the bobbin mounting seat 146 meetsthe inner surface of the housing 140.

The second flow restrictor 146 a-1 may be configured as an inclinedsurface when viewed in the first direction. By way of example, thesecond flow restrictor 146 a-1 may be formed into the inclined surfacethrough chamfering.

The second stopper 112, which is a portion of the bobbin 110, may bemounted in the bobbin mounting seat 146. The bobbin mounting seat 146may serve to restrict the movable range of the second stopper 112.

The second stopper 112 may not be securely mounted in the bobbinmounting seat 146, but may be movable within the volume range defined bythe bobbin mounting seat 146. Accordingly, when the adhesive g flowsinto the bobbin mounting seat 146 from the first magnet mounting seat141 a and is then cured in the bobbin mounting seat 146, the curedprotruding adhesive g may further restrict the range within which thesecond stopper 12 is movable, thus causing operational malfunctions ofthe lens moving apparatus.

Furthermore, when the cured protruding adhesive g repeatedly collideswith the second stopper 112, the adhesive g may temporarily adhere tothe second stopper 112 due to the adhesiveness of the adhesive g. Hence,the cured protruding adhesive g may temporarily restrict the movement ofthe second stopper 112, thus causing operational malfunctions of thebobbin 110 including the second stopper 112 or of the entire lens movingapparatus.

As shown in FIG. 16, the second flow restrictor 146 a-1 may be embodiedas an inclined surface for restricting the flow of the adhesive g.Specifically, in the case of a sharp edge having no second flowrestrictor 146 a-1, when the adhesive g flows down from the first magnetmounting seat 141 a and reaches the lower surface 146 a of the bobbinmounting seat 146, the adhesive g may partially infiltrate into thebobbin mounting seat 146. When the bobbin 110 is first coupled to thehousing 140 during the operation of assembling the lens movingapparatus, a portion of the adhesive g may drop on the second stopper112 of the bobbin 110 and may be cured thereon.

Even when the adhesive g does not drop, a protruding portion may becreated on the end of the lower surface 146 a of the bobbin mountingseat 146 in the first direction, and such a protruding portion may alsocause operational malfunctions of the second stopper 112.

In contrast, in the case in which the second flow restrictor 146 a-1 isembodied as an inclined surface, when the adhesive g flows down andreaches the upper end of the second flow restrictor 146 a-1, theadhesive g flows along the inclined surface while changing its flowingdirection. Accordingly, since the adhesive g adheres to the inclinedsurface, the adhesive g does not flow down any further, and does notcreate a protruding portion.

As the width w4 of the second flow restrictor 146 a-1, that is, thewidth of the inclined surface in the cross-sectional view of FIGS. 15and 16 is increased, the effect of restricting the flow of the adhesiveg may be increased. Accordingly, the width w3 of the second flowrestrictor 146 a-1 is preferably as large as possible, as long as it hasno influence on the overall operation of the lens moving apparatus.

FIG. 17 is a view showing the adhesive inlet 141 b according to oneembodiment. FIG. 18 is a view showing the adhesive inlet 141 b accordingto another embodiment.

As shown in FIG. 17, the adhesive inlet 141 b may be formed in the firstside surface P1-1. In this case, when additional adhesive g is injectedinto the bonding area from the injector n, the adhesive g, dischargedfrom the point of the injector, first permeates the bonding area on thefirst side surface P1-1 of the first magnet mounting seat 141 a, andthen permeates the second side surface P1-2 and the upper surface P2 ofthe first magnet mounting seat 141 a.

In contrast, as shown in FIG. 18, the second side surfaces P1-2 may beprovided with the respective adhesive inlets 141 b. In this case,although one of the two second side surfaces P1-2 may be provided withthe adhesive inlet 141 b, both of the second side surfaces P1-2 arepreferably provided with respective adhesive inlets 141 b, in order toallow the adhesive g to be uniformly applied to both of the sidesurfaces P1-2.

In this case, when additional adhesive g is injected to the bonding areafrom the injector n, the adhesive g discharged from the point of theinjector first permeates the bonding area on the second side surfaceP1-2 of the magnet mounting seat 141 a and then permeates the first sidesurface P1-1 and the upper surface P2 of the first magnet mounting seat141 a.

Alternatively, the embodiments shown in FIGS. 17 and 18 may be combinedwith each other. In other words, the adhesive inlet 141 b may be formedin both the first side surface P1-1 and the second side surface P1-2. Inthis case, the adhesive inlets 141 b are preferably formed in both ofthe second side surfaces P1-2, respectively, in order to allow theadhesive g to be uniformly applied to both of the second side surfacesP1-2. Consequently, a total of three adhesive inlets 141 b may beprovided in this embodiment.

FIG. 19 is a view illustrating the second flow restrictor 146 a-1according to another embodiment. As shown in FIG. 19, a plurality ofstepped portions s may be formed at portions where the inner surface ofthe housing 140 meets the bobbin mounting seat 146, and the individualstepped portions s may be provided with respective second flowrestrictors 146 a-1.

In other words, a plurality of second flow restrictors 146 a-1 may beprovided. The embodiment including the plurality of second flowrestrictors 146 a-1 may be more effective in restricting the flow of theadhesive g by virtue of the second flow restrictors 146 a-1, compared tothe embodiment including only one second flow restrictor 146 a-1.

The plurality of flow restrictors 146 a-1 may be formed, for example, insuch a manner as to form a plurality of stepped portions s at areaswhere the inner surface of the housing meets the upper surface P2 of thefirst magnet mounting seat 141 a and the lower surface 146 a of thebobbin mounting seat 146 and to chamfer the respective stepped portionss.

Although two second flow restrictors 146 a-1 are provided in thisembodiment, the disclosure is not limited thereto. The number of secondflow restrictors 146 a-1 may be appropriately selected in considerationof the available space in the housing 140 and influences on the overalloperation of the lens moving apparatus.

The second flow restrictors 146 a-1 may be provided at all or some ofthe plurality of stepped portions s. In the case where the second flowrestrictors 146 a-1 are provided at only some of the plurality ofstepped portions s, the first portion where the adhesive g, which hasflowed from the upper surface P2, is introduced into the bobbin mountingseat 146, that is, the first stepped portion s which is directlyconnected to the inner surface of the housing 140, is necessarilyprovided with the second flow restrictor 146 a-1.

Alternatively, although the plurality of stepped portions s areprovided, the plurality of stepped portion s may not be chamfered. Inthis case, the plurality of stepped portions s may serve as the secondflow restrictors.

In the embodiment, the second flow restrictors 146 a-1 serve to preventthe adhesive g, which has flowed from the first magnet mounting seat 141a, from being introduced into the bobbin mounting seat 146 and beingcured thereat, or to serve to prevent the adhesive g from being cured atthe lower end 146 a of the bobbin mounting seat 146 and protrudingtherefrom, thus preventing operational malfunctions of the overall lensmoving apparatus.

FIG. 20 is a schematic perspective view showing the lens movingapparatus according to another embodiment. FIG. 21 is an enlarged viewshowing area A of FIG. 20.

As shown in FIGS. 20 and 21, the lens moving apparatus according to theembodiment may include the printed circuit board 250, the cover member300, and a recess g1 defined by a portion of the base 210 surroundingthe recess g1.

The printed circuit board 250 may include at least one bent terminalmember 253, and the first recess g1 may be formed in both sides of theupper portion of the terminal member 253. The both sides of the upperportion of the terminal member 253 may be provided with recesses 253 aconstituting a part of the first recess g1.

The terminal member 253 may be provided with a plurality of terminals251 so as to receive external power and supply the power to the firstcoil 120 and the second coil 230. The number of terminal members 253 maybe increased or decreased depending on the kinds of components to becontrolled.

The first recess g1 is intended to allow an adhesive to be introducedtherethrough so that the adhesive penetrates the gap between the covermember 300 and the base 210 and fills the gap.

The first recess g1 may be surrounded by a first surface fl, which isdefined by one end of the terminal member 253, a second surface, whichis defined by one end of the cover member 300, and a third surface f3,which is defined by one end of the base 210. The first recess g1 may beopen at the front side and may be closed by the outer surface 210 a ofthe base 210.

As shown in FIG. 21, the outer surface 210 a of the base 210, whichdefines the first recess g1, may be provided at the center thereof witha projection. Here, since the gaps between the printed circuit board250, the cover member 300 and the base 210 face the side surface of theprojection, adhesive that has been introduced into the first recess g1flows toward the end of the projection and thus easily penetrates thegaps, thus making it easy to perform bonding using an adhesive.

The first recess g1 may include a pair of first recesses, which arespaced apart from each other by a predetermined distance. Since the gapsbetween the printed circuit board 250, the cover member 300 and the base210 are positioned at both sides of an upper portion of the terminalmember 253, the pair of first recesses g1 are provided in order to bondthe gaps.

The adhesive that is used in the bonding procedure may be made ofpolymer-based material such as epoxy. When the adhesive has a lowviscosity, although the bonding procedure of filling the gap may beeasily performed by virtue of the high fluidity, the bonding force maybe decreased. On the other hand, when the adhesive has a high viscosity,although the adhesive has a high bonding force, the bonding proceduremay not be easily performed due to the low fluidity.

Therefore, considering facilitation of work, the bonding strengthbetween the printed circuit board 250, the cover member 300 and the base210 after the bonding procedure, there is a need to perform the bondingprocedure using an adhesive having an appropriate viscosity.

The width w of the first recess g1, which is measure in the lengthdirection of the terminal member 253, may be determined in considerationof whether the needle of the adhesive injector, which is used in thebonding procedure, can easily enter the first recess g1, ease offormation of the first recess g1, facilitation of the bonding procedure,and the like.

Considering these matters, the width w of the first recess g1 is 0.1 mmor more, preferably 0.3 mm or more, and more preferably 0.1 mm-0.6 mm.

FIG. 22 is a view showing a bonding procedure of coupling the lensmoving apparatus according to another embodiment.

The bonding procedure of coupling the terminal member 253, the covermember 300 and the base 210, which are provided at the printed circuitboard 250, may be performed using an application device on which theadhesive injector is mounted.

As shown in FIG. 22, the bonding procedure may be performed, forexample, by filling and bonding, using the adhesive, a first gap G1between the terminal member 253 and the cover member 300 and a secondgap G2 between the terminal member 253, the cover member 300 and thebase 210 while moving the needle of the adhesive injector in the lengthdirection of the terminal member 253, that is, in the horizontaldirection in the drawing.

As shown in FIG. 22, when the bonding procedure is performed in the lensmoving apparatus equipped with the first recess g1 according to theembodiment while moving the needle from the left to the right, thebonding procedure may be easily implemented at the first gap G1.Furthermore, since the second gap G2 is provided with the first recessg1, the bonding procedure may also be easily implemented at the secondgap G2. The specific bonding procedure will now described hereinafter.

The needle is first disposed at the first recess g1 positioned at thesecond gap G2, which is represented at the left side of the drawing, andsufficient adhesive is injected into the first recess g1. The injectedadhesive is introduced into the first recess g1, and is furtherintroduced into the second gap G2, where the terminal member 253, thecover member 300 and the base 210 define the first recess g1.

A sufficient amount of adhesive is introduced into the second gap G2through the first recess g1, and thus the terminal member 253, the covermember 300 and the base 210 are bonded to each other with a sufficientcoupling force, and the second gap G2 may be completely sealed. Afterthe bonding procedure at the second gap G2 is completed, a procedure ofsealing the first gap G1 may be performed.

Subsequently, a bonding procedure is performed in such a manner as tofill the first gap G1 with an adhesive while moving the needlepositioned at the first recess g1 to the right in the drawing.

At this point, by injecting a sufficient amount of adhesive into thefirst gap G1 and appropriately controlling the moving speed of theneedle, the terminal member 253 and the cover member 300 may be coupledto each other with a sufficient coupling force therebetween, and thefirst gap G1 may be completely sealed.

Subsequently, the needle is disposed at the first recess g1, which ispositioned at the second gap G2, which is represented at the right ofthe drawing, and the same bonding procedure as that performed at thesecond gap G2, which is represented at the left of the drawing, isperformed.

Through these procedure, the terminal member 253, the cover member 300and the base 210 may be bonded to each other with a sufficient couplingforce therebetween, and the second gap G2 may thus be completely sealed.

According to the embodiment, since the bonding procedure is performed byinjecting the adhesive into the first recess g1, the gap between theterminal member 253, the cover member 300 and the base 210 is completelysealed, and the terminal member 253, the cover member 300 and the base210 may thus be coupled to each other with a sufficient coupling forcetherebetween.

FIG. 23 is a bottom view showing the base 210 according to oneembodiment. The base 210 according to the embodiment may include asecond recess g2, which is positioned between the bottom surface thereofand the cover member 300 or the printed circuit board 250 so as to bondthe base 210 to the cover member 300 or the printed circuit board 250.

At this point, the terminal member 253, which is bent from the printedcircuit board 250, and the base 210 are bonded to each other, and thesecond recess g2 may be provided at the area where the base 210 iscoupled to the terminal member 253. Meanwhile, the cover member 300 andthe base 210 are bonded to each other, and the second recess g2 may beprovided at the area where the cover member 300 is coupled to the base210.

In order to block the infiltration of external pollutants into theinside of the lens moving apparatus, there is a need to perform abonding procedure. However, in the case where the gap between theterminal member 253, the base 210 and the cover member 300 is sealedwith an adhesive, the bonding procedure is not so easy due to thepresence of the terminals of the terminal member 253.

Specifically, when the bonding procedure is performed at the frontsurface, at which the terminals of the terminal member 253 are formed,the adhesive may adhere to the terminals. After the assembly of the lensmoving apparatus including the bonding procedure, the adhesive adheringto the terminals may cause bad connections, malfunctions attributable tothe bad connections, or the like during tests of the performance of thelens moving apparatus or upon actual use of the lens moving apparatus.

When the bonding procedure is performed at the front surface of theterminal member 253 at which the terminals are formed, since a pluralityof projections or recesses are present at the area where the terminalmember 253, the base 210 and the cover member 300, which may obstructthe movement of the needle for applying the adhesive, are coupled toeach other, the bonding procedure may not be smoothly implemented, andthe needle may be bent or broken during the bonding procedure.

Accordingly, in the embodiment, the bonding procedure is performed atthe rear surface of the terminal member 253 rather than at the frontsurface so as to make it easy to implement the bonding between theterminal member 253, the base 210 and the cover member 300 and toachieve complete sealing by virtue of the bonding procedure.

The base 210 may be configured to have a square contour, and the secondrecesses g2 may be provided at respective sides of the square shape. Thearea where the cover member 300 or the terminal member 253 of theprinted circuit board 250 is coupled to the base 210 may be provided atthe respective sides of the square shape.

The second recess g2 may be formed close to the gap between the terminalmember 253, the base 210 and the cover member 300, and may be closed atthe inner side and open at the outer side so as to communicate with thegap.

Consequently, the adhesive is injected into the second recess g2, and issubsequently introduced into the gap positioned at the open area of thesecond recess g2 so as to fill the gap, thus completing the bondingprocedure. By injecting an appropriate but sufficient amount of adhesiveinto the second recess g2, the gap may be completely filled and sealedwith the adhesive.

FIG. 24 is a bottom view showing a base 210 according to anotherembodiment. As shown in FIG. 24, the second recess g2 may be providedwith a third recess g3, which is recessed toward the center of the base210.

The third recess g3 may be additionally provided at the second recessg2. By virtue of the provision of the third recess g3, when an adhesiveis injected into the third recess g3, the adhesive may be introducedinto the gap through the second recess g2 from the third recess g3, thussealing the gap.

A point application technology of injecting an adhesive into the thirdrecess g3 at a single point may have effects of remarkably reducingbreakage and bending of the needle compared to a line applicationtechnology of disposing the needle at an initial position and moving theneedle along the gap.

FIG. 25 is a bottom view showing the base 210 according to a furtherembodiment. As shown in FIG. 25, the second recess g2 may be providedwith a fourth recess g4, which is recessed toward the corner of the base210.

The fourth recess g4 may include a plurality of fourth recesses g4,which are symmetrically positioned with respect to an imaginary centerline that extends through the center of each side of the base 210 andthe center of the base 210. Although FIG. 25 illustrates a pair offourth recesses g4 at each fourth recess g4, the disclosure is notlimited thereto.

Specifically, the fourth recess g4 may include four or more fourthrecesses g4, which are symmetrically positioned. Although thecorresponding fourth recesses g4 are symmetrically positioned withrespect to each other, there is no need to configure the correspondingfourth recesses g4 to have symmetrical shapes.

Like the third recess g3, the fourth recess g4 may be additionallyprovided at the second recess g2. When an adhesive is injected into thefourth recess g4 during the bonding procedure, the adhesive may beintroduced into the gap through the second recess g2 from the fourthrecess g4, thus sealing the gap.

As in the preceding example, the point application technology ofinjecting an adhesive into the third recess g4 at a single point mayhave effects of remarkably reducing breakage and bending of the needlecompared to the line application technology of disposing the needle atan initial position and moving the needle along the gap.

FIG. 26 a bottom view showing a base 210 according to still anotherembodiment. As shown in FIG. 26, the fourth recesses g4 are formed atrespective corners of the base 210, and two adjacent fourth recesses g2,with the corner disposed therebetween, may be connected to each othervia the associated fourth recess g4.

Accordingly, the second recesses g2, which are formed in the bottomsurface of the base 210, may be connected to each other via the fourthrecesses g4. Here, an adhesive, which has been injected into the fourthrecesses g4, may be introduced into the second recesses g2, which areadjacent to each other with the corners of the base 210 therebetween,and may be introduced into the gaps, which are adjacent to each otherwith the corners of the base 210 therebetween.

FIG. 27 is a bottom view showing a base 210 according to yet anotherembodiment. As shown in FIG. 27, the second recess g2 may be providedwith the third recess g3, which is recessed toward the center of thebase 210, and the fourth recess g4, which is recessed toward the cornerof the base 210. The fourth recess g4 may include a plurality of fourthrecesses g4, which are symmetrically positioned with respect to eachother.

In this embodiment, the point application technology may be performed soas to inject an adhesive into the third recess g3 and/or the fourthrecess g4. Like the embodiment shown in FIG. 26, the fourth recesses g4may be formed at the corners of the base 210, and the second recessesg2, which are adjacent to each other with the corners of the base 210therebetween, may be connected through the fourth recesses g4.

FIG. 28 is a view showing the second recess g2. FIG. 29 is a schematicview showing a side surface f5 of the second recess g2.

As shown in FIGS. 28 and 29, the second recess g2 including the fourthrecess g4 may be inclined toward the end from the center of the side ofthe base 210 so as to be increasingly widened toward the adjacent sideof the square base 210.

Thanks to the inclined structure, adhesive p, which has been introducedinto the fourth recess g4, may easily flow into the second recess g2 soas to fill the gap, that is, the area to be bonded, thus enable thebonding procedure to be rapidly completed.

As shown in FIG. 29, the fourth recess g4 may be configured such thatthe minimum depth L1 of the fourth recess g4 is greater than the maximumdepth L2 of the second recess g2. During the bonding procedure, theupper end of the side surface f5 of the second recess g2 including thefourth recess g4 is positioned to be horizontal or almost horizontal.Accordingly, the side surface f5 of the second recess g2 is inclined,and the bottom of the second recess g2 is also inclined.

Consequently, the adhesive p, which has been introduced into the fourthrecess g4, may smoothly flow along the bottom of the second recess g2,and may then be introduced in the gap, that is, the area to be bonded,thus sealing the gap.

Any of the second recess g2, the third recess g3 and the fourth recessg4 in the respective embodiments shown in FIGS. 23 to 27 may be inclinedtoward the outside from the inside of the base 210 so as to beincreasingly deepened.

Accordingly, since the respective recesses formed in the bottom surfaceof the base 210 are deepened toward the outside from the inside of thebase 210, adhesive p introduced in the respective recesses may moresmoothly flow into the gaps, thus enabling the bonding procedure to berapidly completed.

The lens moving apparatus according to the above embodiments may beapplied to products in various fields, for example camera modules. Sucha camera module may be applied, for example, to mobile devices such ascellular phones.

The camera module according to the embodiment may include a lens barrelcoupled to the bobbin 110, an image sensor (not shown), a printedcircuit board 250 and an optical system.

The lens barrel is as described above, and the printed circuit board 250is the component on which the image sensor is mounted, and mayconstitute the bottom surface of the camera module.

The optical system may include at least one lens for transmitting animage to the image sensor. The optical system may be provided with anactuator module capable of fulfilling functions of autofocusing andhandshake correction. The actuator module functioning to fulfill thefunction of autofocusing may be variously constructed, and a voice coilunit motor is primarily used in the actuator module. The lens movingapparatus according to the embodiments may serve as an actuator modulefulfilling both functions of autofocusing and handshake correction.

The camera module may further include an infrared ray screening filter(not shown). The infrared ray screening filter functions to block theincidence of light in the infrared range on the image sensor. In thebase 210 illustrated in FIG. 2, the infrared ray screening filter may beinstalled at a position corresponding to the image sensor, and may becoupled to a holder member (not shown). The base 210 may support thelower portion of the holder member.

The base 210 may be provided with an additional terminal member forconductive connection to the printed circuit board 250, and the terminalmay be integrally formed using a surface electrode. The base 210 mayserve as a sensor holder for protecting the image sensor. In this case,although a projecting portion may be formed downward along the lateralside surface of the base 210, it is not an essential component. Althoughnot shown in the drawings, an additional sensor holder may be disposedunder the base 210 to serve as the projecting portion.

Although embodiments have been described with reference to a number ofillustrative embodiments thereof, it should be understood that numerousother modifications and embodiments can be devised by those skilled inthe art that will fall within the spirit and scope of the principles ofthis disclosure. More particularly, various variations and modificationsare possible in the component parts and/or arrangements of the subjectcombination arrangement within the scope of the disclosure, the drawingsand the appended claims. In addition to variations and modifications inthe component parts and/or arrangements, alternative uses will also beapparent to those skilled in the art.

What is claimed is:
 1. A lens moving apparatus comprising: a housingincluding a first magnet mounting seat; a bobbin disposed in thehousing; a first coil disposed on the bobbin; a first magnet disposed inthe first magnet mounting seat; and an adhesive disposed between thefirst magnet and the first magnet mounting seat, wherein the firstmagnet mounting seat is a recess comprising an upper surface facing anupper surface of the first magnet, a first side surface facing a firstside surface of the first magnet, a second side surface connected to oneside edge of the first side surface of the recess, a third side surfaceconnected to an other side edge of the first side surface of the recess,and an open plane disposed between one side edge of the second sidesurface not connected to the first side surface and one side edge of thethird side surface not connected to the first side surface, wherein thehousing includes at least one first flow restrictor formed on the uppersurface of the first magnet mounting seat, wherein the at least onefirst flow restrictor is formed at an inner position spaced away fromthe open plane of the first magnet mounting seat, wherein the firstmagnet is configured to have a trapezoidal shape when viewed in a planview, and the first magnet mounting seat is positioned at a corner ofthe housing and has a trapezoidal shape corresponding to the shape ofthe first magnet, wherein the first flow restrictor is disposed inparallel with a lower side of the trapezoidal shape, wherein the housingincludes a bobbin mounting seat, which is provided over the first magnetmounting seat and in which the bobbin is partially received, andincludes a second flow restrictor, which is provided at an area wherethe bobbin mounting seat meets an inner surface of the housing in afirst direction, and wherein the second flow restrictor is provided atan area where a lower surface of the bobbin mounting seat meets theinner surface of the housing.
 2. The lens moving apparatus according toclaim 1, wherein the at least one first flow restrictor includes agroove, the open plane is configured to expose a second side of thefirst magnet, and the second side of the first magnet is opposite to thefirst side of the first magnet, and wherein the at least one first flowrestrictor is closer to the open plane than to the first side surface ofthe first magnet mounting seat.
 3. The lens moving apparatus accordingto claim 2, wherein the housing includes an adhesive inlet depressedfrom a lower surface of the housing so as to allow the first magnetmounting seat to communicate with an outside surface of the housing, andwherein the adhesive inlet is formed in at least one of the first tothird side surfaces of the first magnet mounting seat.
 4. The lensmoving apparatus according to claim 1, wherein the first flow restrictoris configured to have a semicircular shape or a U shape in across-sectional view.
 5. The lens moving apparatus according to claim 1,wherein the housing includes a plurality of stepped portions in theupper surface of the first magnet mounting seat.
 6. The lens movingapparatus according to claim 1, wherein the second flow restrictor hasan inclined surface, which is inclined in the first direction.
 7. Thelens moving apparatus according to claim 1, wherein the adhesive isdisposed between the first to third side surfaces and the first magnetand between the upper surface of the first magnet mounting seat and thefirst magnet.
 8. The lens moving apparatus according to claim 1,comprising: an elastic member coupled to the bobbin and the housing; anda support protrusion formed on an upper surface of the housing andcoupled to an outer frame of the elastic member, wherein the bobbincomprises an upper support protrusion formed on an upper surface of thebobbin and coupled to an inner frame of the elastic member.
 9. The lensmoving apparatus according to claim 8, comprising a plurality of supportprotrusions formed on the upper surface of the housing, wherein thebobbin comprises a plurality of upper support protrusions formed on anupper surface thereof, and wherein a quantity of the support protrusionsis larger than a quantity of the upper support protrusions of thebobbin.
 10. A lens moving apparatus comprising: a housing including afirst magnet mounting seat; a bobbin disposed in the housing formounting a lens barrel; a first coil disposed on the bobbin; a firstmagnet disposed in the first magnet mounting seat; a first adhesivedisposed between the first magnet and the first magnet mounting seat; anelastic member coupled to the bobbin and the housing; a support memberdisposed on a side surface of the housing and coupled to the elasticmember; a second coil disposed below the housing; and a base disposedbelow the second coil, wherein the first magnet mounting seat is arecess comprising an upper surface facing an upper surface of the firstmagnet, a first side surface facing a first side surface of the firstmagnet, a second side surface connected to one side edge of the firstside surface of the recess, a third side surface connected to an otherside edge of the first side surface of the recess, and an open planedisposed between one side edge of the second side surface not connectedto the first side surface and one side edge of the third side surfacenot connected to the first side surface, wherein the housing includes atleast one first flow restrictor formed on the upper surface of the firstmagnet mounting seat, wherein the at least one first flow restrictor isformed at an inner position spaced away from the open plane of the firstmagnet mounting seat, wherein the first magnet is configured to have atrapezoidal shape when viewed in a plan view, and the first magnetmounting seat is positioned at a corner of the housing and has atrapezoidal shape corresponding to the shape of the first magnet,wherein the first flow restrictor is disposed in parallel with a lowerside of the trapezoidal shape, wherein the housing includes a bobbinmounting seat, which is provided over the first magnet mounting seat andin which the bobbin is partially received, and includes a second flowrestrictor, which is provided at an area where the bobbin mounting seatmeets an inner surface of the housing in a first direction, and whereinthe second flow restrictor is provided at an area where a lower surfaceof the bobbin mounting seat meets the inner surface of the housing. 11.The lens moving apparatus according to claim 10, wherein the bobbincomprises: a first stopper provided at an upper surface of the bobbin;and a second stopper circumferentially protruding from an outer surfaceof a lower portion of the bobbin.
 12. The lens moving apparatusaccording to claim 10, further comprising a printed circuit boarddisposed between the second coil and the base, wherein the at least onefirst flow restrictor includes a groove, and wherein a first recess isdefined by portions of end surfaces of the printed circuit board, thecover member, and the base.
 13. The lens moving apparatus according toclaim 12, wherein the printed circuit board includes at least oneterminal member that is bent from the printed circuit board, and thefirst recess is provided at both sides of an upper portion of theterminal member.
 14. The lens moving apparatus according to claim 13,wherein the terminal member has cutout portions, which are formed inboth sides thereof to define a portion of the first recess, and whereinthe first recess is surrounded by a first surface formed at one end ofthe terminal member, a second surface formed at one end of the covermember, and a third surface formed at one end of the base.
 15. The lensmoving apparatus according to claim 10, wherein the open plane isconfigured to expose a second side of the first magnet, and the secondside of the first magnet is opposite to the first side of the firstmagnet, and wherein the at least one first flow restrictor is closer tothe open plane than to the first side surface of the first magnetmounting seat.
 16. The lens moving apparatus according to claim 12,wherein the first recess is open at a front side thereof, and is closedby an outer surface of the base.
 17. The lens moving apparatus accordingto claim 12, wherein the first recess has a width of 0.1 mm to 0.6 mm,which is measured in a length direction of the printed circuit board.18. The lens moving apparatus according to claim 12, wherein the firstrecess includes a pair of first recesses, which are spaced apart fromeach other by a predetermined distance.
 19. The lens moving apparatusaccording to claim 12, wherein the base includes a second recess, whichis provided at an area of a lower surface thereof where the base iscoupled to the cover member or the printed circuit board and to which asecond adhesive for bonding the base to the cover member or the printedcircuit board is applied.
 20. The lens moving apparatus of claim 19,wherein the printed circuit board includes at least one terminal memberbent therefrom, the base and the terminal member are bonded and coupledto each other, and the second recess is provided at an area of which thebase and the terminal member are coupled to each other.
 21. The lensmoving apparatus according to claim 19, wherein the base has arectangular contour, and the second recess includes a plurality ofsecond recesses provided at respective sides of the rectangular shape.